1.

Three point charges of +2q, +2q and -4q are placed at the corners A, B and C of an equilateral triangle ABC of side 'x'. The magnitude of the electric dipole moment of this system is.

Answer»

`2qx`
`2sqrt(3)qx`
`3sqrt(2)qx`
3 qx

Solution :According to QUESTION,
The magnitude of electric dipole MOMENT

`P_("net")=sqrt(p^(2)+p^(2)+2P p cos 60^(@))`
`= sqrt(2p^(2)+2p^(2)xx(1)/(2))`
`= sqrt(3).p`
We know that, p = 2q.x
`= sqrt(3).2qx = 2sqrt(3)qx`


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